A note on no-hair properties of static black holes in four and higher dimensional spacetimes with cosmological constant

Abstract

We study no-hair properties of static black holes in four and higher dimensional spacetimes with a cosmological constant. For the vanishing cosmological constant case, we show a no-hair theorem and also a no-short-hair theorem under certain conditions for the energy-momentum of matter fields. For the positive cosmological constant case, we discuss conditions for hairy static black holes to exist in terms of the energy density of matter fields evaluated at the black hole horizon and the cosmological horizon. For the negative cosmological constant case, we study conditions for hairy black holes by presenting a no-hair theorem in which the asymptotic structure is assumed to be determined by the true cosmological constant.

revised version, references added, two appendixes given for more discussions on the Johannsen-Psaltis parametrized metrics and the relation between the no-short hair and null circular orbit, to appear in CQG